With this boat support bracket with keel rollers a boat can be optimally supported. The 35.43' long bracket is installed on a boat trailer and safely supports the keel of the boat. Due to the adjustable width of the bracket, boats with a width between 11.42 and 31.50inch can be held. This makes the holder suitable for smaller and bigger boats. The support bracket is made of high-quality galvanised steel and has a maximum load capacity of 1102lbs. With Super-Heavy-Duty Rubber keel rollers for boats,helps to absorb road shock while boat is being towed Specifications Material: Steel Weight: 12 lb Maximum capacity: 1102 lbs Keel roller size: 3.07x5.32' size 35.43 length ,height adjustable 6.69-11.81inch